The Tomorrow People (1973) - 4x07 - Into the Unknown, Part 4: The Circle- Followmy.tv

As the shuttlecraft slows down and the reactors begin working again, they approach the hole and see stars. On the father-ship, Vektaan sees the shuttlecraft re-emerging from the hole. Tirayaan tells them that they have travelled in a circle, and that it has only been a few minutes since they entered the hole. Vektaan informs them that he has abandoned the rebellion, and wants them to return to the father-ship. But when Tirayaan tries to contact Vektaan, the Father-ship fires at the shuttle craft; one of the energy bolts enters the hole, and returns a few seconds later, destroying the father-ship. The Tomorrow People, Tirayaan and Kwaan return to Earth.